Sleep Duration

7h 18m

Aim for an additional 30–40 minutes of actual sleep time by shifting your bedtime slightly earlier.

Epidemiological research consistently links 7–9 hours of sleep to reduced mortality and improved metabolic health, whereas chronic restriction under 7 hours is associated with cognitive decline (Walker, 2017).

Thermoregulation

Optimal baseline

Maintain a cool bedroom environment (approx. 18°C/65°F) and use cooling bedding to ensure your core temperature drops smoothly into deep sleep.

Thermoregulation research (Harding et al., 2019) shows a drop in core body temperature is a key trigger for sleep onset and deep-sleep consolidation.

REM Consistency

1h 45m

Keep a consistent wake time; even on weekends; to stabilize your REM cycle.

REM sleep is concentrated in the final third of the night; irregular wake times truncate REM and impair emotional regulation and memory consolidation.

Set a 15-minute wind-down alarm

A consistent pre-sleep routine lowers arousal and shortens sleep onset latency.

Dim lights, put your phone away, and do light stretching or breathing 15 minutes before your target bedtime.

Keep your bedroom at 18°C

A cool sleep environment supports the core-temperature drop that anchors deep sleep.

Set your AC to 18°C and pair cooling bedding (CoolTouch® fabric, TENCEL™ lyocell) to wick heat and moisture away from your skin.

Cut caffeine after 2 PM

Caffeine has a half-life of 5–6 hours and measurably reduces deep sleep even when you fall asleep fine.

Switch to water or herbal tea after early afternoon, especially on training days.